You probably already know that "deliver" is used as in, for example, delivering a pizza. But it can also be used to talk about giving something valuable to your students, customers, readers, listeners, bosses, and so on. This isn't usually a physical object. It's usually some kind of feeling or idea. For example:
PhraseMix delivers realistic English phrases that you can use in day-to-day life.
Our job is to deliver an entertaining and relaxing experience for our guests.
My methods can be a little disorganized, but I deliver results.